초록 ▼

An in-well system for simultaneously treating and extracting groundwater by injecting compressed gas through the groundwater in multiple successive stages as it is pumped out of a well. The process is usable for in-well aeration stripping of Volatile Organic Compounds from groundwater or for other a

An in-well system for simultaneously treating and extracting groundwater by injecting compressed gas through the groundwater in multiple successive stages as it is pumped out of a well. The process is usable for in-well aeration stripping of Volatile Organic Compounds from groundwater or for other applications in which it is desirable to pass compressed gas through groundwater to alter the physical, chemical, or radiological properties of the groundwater prior to its discharge from the well.

대표청구항 ▼

A system for treating groundwater including a means for directing water flow by gravity along multiple separate paths within a water well during the pumping process and a means for injecting compressed gas into the water at separate locations within each of the multiple separate paths and a means fo

A system for treating groundwater including a means for directing water flow by gravity along multiple separate paths within a water well during the pumping process and a means for injecting compressed gas into the water at separate locations within each of the multiple separate paths and a means for transporting the injected gas to the top of the water well for collection or dispersion into the atmosphere after it has passed through the water, and a means for discharging the water at the top of the well after it has been treated, wherein said means for directing water flow by gravity along multiple separate paths within a water well during pumping, said well having a minimum water level and a maximum static water level, includes: one or more pipes mounted concentrically within a lower section of a well casing below the minimum water level within the well during pumping and sealed at the bottom of the well but allowing alternating upward and downward flow of water by gravity from one annular space to another commencing with an upward flow within an outermost annular space and ending with a downward flow to a pumping inlet at the bottom of the well within an innermost annular space; one or more pipes mounted concentrically within an upper section of the well casing above the maximum static water level within the well which allows alternating upward and downward flow of water by gravity from one annular space to another commencing with a downward flow within an innermost annular space and ending with an upward flow to a discharge outlet at the top of the well within an outermost annular space and a means for supporting the pipes at their bottom and separating them from the well below; and surge tanks mounted upon the tops of the concentric pipes mounted above the maximum static water level to prevent water flow during hydraulic surges.